<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript">
        var num = parseInt("123");
        var num2 = parseFloat("8.8");
        var num3 = parseInt("abv");

    </script>
</head>
<body>

</body>
</html>